Fourth Volume - New Description of the Sun Dial - Chapters - Page 72 Fourth Volume - New Description of the Sun Dial - Chapters - Page 73
Fourth Volume - New Description of the Sun Dial - Chapters - Page 71



Fourth Volume - New Description of the Sun Dial - Chapters - Page 72 Fourth Volume - New Description of the Sun Dial - Chapters - Page 73 Fourth Volume - New Description of the Sun Dial - Chapters - Page 74